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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 946 (Transfer Case (NVG226-NP8)) >> Repair Instructions >> Transfer Case Assembly Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: If the transfer case gasket is damaged, replace it. DO NOT use silicone sealant in place or with the transfer case gasket.
  1. Replace the transfer case gasket.
    2. Fig 1: Replacing Transfer Case Gasket
    G01705772Courtesy of GENERAL MOTORS CORP.
  2. Install the transfer case in the vehicle.
    3. Fig 2: Installing Transfer Case In Vehicle
    G01705773Courtesy of GENERAL MOTORS CORP.
  3. Install the transfer case mounting bolts.
    NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten 

    Tighten the transfer case mounting bolts to 47 N.m (35 lb ft).

    4. Fig 3: Installing Transfer Case Mounting Bolts
    G01705774Courtesy of GENERAL MOTORS CORP.
  4. Remove the transmission jack stand.
  5. Install the transfer case speed sensors electrical connectors (front speed sensor shown).
    6. Fig 4: Installing Transfer Case Speed Sensors Electrical Connectors
    G01705775Courtesy of GENERAL MOTORS CORP.
  6. Install the vent hose.
    7. Fig 5: Installing Vent Hose
    G01705776Courtesy of GENERAL MOTORS CORP.
  7. Install the motor/encoder electrical connector.
  8. Install the transfer case harness to the transfer case.
    9. Fig 6: Installing Transfer Case Harness To Transfer Case
    G01705777Courtesy of GENERAL MOTORS CORP.
  9. Install the transfer case wiring harness to the retainers (left side).
    10. Fig 7: Installing Transfer Case Wiring Harness To Retainers (Left Side)
    G01705778Courtesy of GENERAL MOTORS CORP.
  10. Install the transfer case wiring harness to the retainers (right side).
    11. Fig 8: Installing Transfer Case Wiring Harness To Retainers (Right Side)
    G01705779Courtesy of GENERAL MOTORS CORP.
  11. Install the fuel lines to the retainer.
    12. Fig 9: Installing Fuel Lines To Retainer
    G01705780Courtesy of GENERAL MOTORS CORP.
  12. Install the rear propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - REAR in Propeller Shaft.
    13. Fig 10: Installing Rear Propeller Shaft
    G01705781Courtesy of GENERAL MOTORS CORP.
  13. Install the front propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - FRONT in Propeller Shaft.
    14. Fig 11: Installing Front Propeller Shaft
    G01705782Courtesy of GENERAL MOTORS CORP.
  14. Fill the transfer case with fluid. Refer to Transfer Case Fluid Replacement .
  15. Install the fuel tank shield.
    16. Fig 12: Installing Fuel Tank Shield
    G01705783Courtesy of GENERAL MOTORS CORP.
  16. Install the fuel tank mounting bolts.

    Tighten 

    Tighten the fuel tank mounting bolts to 25 N.m (18 lb ft).

  17. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
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